18698576

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89897}}^1$

素因数の和:89918

約数の個数: 20

約数和(自身を含む): 39015732

約数和(自身を除く): 20317156

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 89897, 179794, 359588, 719176, 1168661, 1438352, 2337322, 4674644, 9349288, 18698576]

約数ペア:

[(1, 18698576), (2, 9349288), (4, 4674644), (8, 2337322), (13, 1438352), (16, 1168661), (26, 719176), (52, 359588), (104, 179794), (208, 89897)]